Introduction to Computer Basics

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					Introduction to Computer

        Ms. Scales
        5th Grade
           What Is A Computer?
An electronic device that receives data,
 processes data, stores data, and produces
 a result (output).
A collection of electronic circuits, which
 can be on or off (open or closed).
  These two states of the circuit are represented
   by two digits, 0 and 1, called a binary system.
                What is Data?

  information entered into the computer to be
   processed, which consists of the following:
    Text, numbers, sounds, and images
  the users of the computers who enter the data
   and use the output.
        Data Communications

Computer technology enables
 computers to communicate
  You can send text, numeric data, voice or
   video data from one machine to another.
  Popular examples:
    Electronic messages (e-mail)
    Text Messages (SMS)
    Multimedia Messages (MMS)
    Istant Messages (IM)
    Electronic or online banking

 Hardware:
  the tangible, physical parts of the computer equipment
   that can be seen and touched such as:
      The Computer itself
      Monitor
      Keyboard
      Mouse
      CD/DVD Drive
      Speakers
          Parts of the Computer
 Central Processing Unit (CPU):
  the microprocessor, the brains of the
      Chip contains millions of switches and
       pathways that help your computer
       make important decisions.
  The main chip that allows computer to
   do millions of calculations per second
   and makes it possible for users to use
   their computer however they need.
         Computer Technology

Hard Drive
  Permanently storing files,
   programs, and other data on your
   computer’s hard drive, which is like
   computer’s “filing cabinet”
Network Drive
  A Storage space on a network,
   such as school or work network.
              Computer Memory
• Memory:
  found on the motherboard; short term and long
  Random Access Memory (RAM)
      memory on the motherboard that is short term; where
       data, information, and program instructions are stored
       temporarily on a RAM chip or a set of RAM chips.
  Read-Only Memory (ROM)
      memory on the motherboard that is long term; where the
       specific instructions that are needed for the computer to
       operate are stored.
   Input, Output, & Storage Devices
 Input device:           Output device: hardware
  hardware that allows     that allows your computer
                           to communicate with the
  you to communicate
  with your computer.
                          Storage device: allows
                           you to store or retrieve

Some types of technology can be both an input and
                an output device!!!
      Computer Input Devices

 Keyboard           Touch screen
 Mouse/Trackball    Bar code reader
 Joystick           Scanner
 Light pen          Microphone
 Pointing Stick     Graphics Tablet
 Touchpad           Digital Cameras
 Video Camera
          Computer Input Devices
 Keyboard
  The hardware device used to
   enter letters, numbers, and
   commands into the computer
 Numeric Keyboard
  The portion of the keyboard,
   set up like a adding machine
   or calculator used to enter
   numbers and equations quickly
   into the computer
 Mouse
  A tool used to move the cursor
   and pointer around the screen
        Computer Output Devices
 Monitor:
   screen that display information
    such as text, numbers, and
 Printer:
   gives you information from the
    computer in printed form.
       Hardcopy
             Three Types of Printers
 Dot Matrix                          Laser
    Gives a printed image in a
     pattern (matrix) of tiny ink      Best quality of printed
     dots.                              documents
        Less expensive and not as
         clear                             Laser beam and an ink
                                            toner cartridge are
 Inkjet Printer
                                            used to produce the
    Better quality of printed
     document                               images.
        Machine uses an ink               More expensive
         cartridge and a printing
         element to print a finer          Quick
         image on the paper.
          Computer Output Devices

   VGA Port
       Allows you to
        display your
        Computer or
        Laptop on an
        external monitor
        or projector.
       Computer Output Devices
 Speakers:
  allow you to hear voice,
   music, and other
   sounds from your
 Modem:
  allows you to use your
   computer to
   communicate with other
         Types of Storage Devices
 Hard Disk Drive: used to store
  data inside of the computer.
  this holds a large amount of
   information in a form the computer
   can understand.
      Accessing data is faster
      Amount of data that can be stored is
       much more than what can be stored
       on a floppy disk.
      Size of Hard drive is measured in
       gigabytes(GB) mainly or
       megabytes(MB) in older computers
       Types of Storage Devices

Portable Storage Device
   Allows you to transport computer files from one
   location to another
    Ex. Flash/Jump Drive, CD, DVD, Floppy Disk,
     External Hard Drive
 Software
  The Programs that give the computer instructions that
   allow you to accomplish certain tasks (this is what we
   use computers for!)
      such as:
        •    write letters
        •   analyze numbers
        •   sort files
        •   draw pictures
        •   play games, etc…
     Two types:
        • Application
        • System software programs
             Operating System
Operating System Software
  The software that allows your computer to start up,
   accept input, deliver output, connect to other
   computers, and generally execute the task on a
    Ex. Vista, Windows XP, Mac Leopard
 Application
  Program or Software
 Application Software
  The individual programs that carry out specific tasks on
   your computer that exist on the computer’s hard drive,
   this is what we use computers for. Ex. Microsoft Word,
   Photoshop, Solitaire
      Business
      Communications
      Graphics and Multimedia
      Education and Reference
      Entertainment and Leisure
      Integrated Programs
             Business Software
 Word Processing                Database
  program that allows you        Lets you set up an
   to create, edit, and print      electronic filing
   text documents                  systems
      Use Ex: Report, flyer,
                                  Enter text and
 Spreadsheet                         Find, search, and
  Numbered Rows and                   printer info in
   Lettered Columns                    different ways
  Intersection of rows and             • Use Ex: Address
   columns = cells                        book, Card Catalog
      Use Ex: Grade book,
       financial info
 Communications               Clip art
    Works with your              graphical images to be
     modems or network             added to documents
     hardware and allows       Desktop Publishing
     your computer to             uses both pictures and
     communicate with other        words to give you the
     computers.                    ability to create
       Exchange computer          documents
        files and email              Ex:Newsletters and
 Graphics Software
    Uses pictures or
     images to help

Digital Presentation Software Presentation
  software that allows you to combine and
   present text, graphics, photos, videos, and
   other multimedia features.
    Ex. PowerPoint (like this one!!!), Windows Movie
Multimedia: combines text, graphics,
 animation, video, and audio.
 Education &                Entertainment &
  Reference                   Leisure
  Available on many          Fun
   topics                     Games and
  Help                        simulations
  Easier                     Tests your skills
  Quicker                    interactive
      Examples: AR,
       Encyclopedia, etc.
        More types of Software
 Software written and then donated to the public,
  so anyone is free to copy it and share it.
 Software that can be tried before you purchase
 Computer assisted data collection tools
   E-mail (electronic
       communicating
        electronically on the
        computer user can
        compose a message at
        one terminal that can
        be regenerated at the
        recipient's terminal
   E-mail Attachments
       Files attached to an e-
        mail message
      Proper Computer Care
 Keep food and drinks away from the computer
  and keyboard.
 Avoid dusty locations.
 Use a surge protector.
 Keep magnets Away.
 Do not block vents on the CPU.
 Avoid bright sunny locations.
 Do not move the computer while it is in use.
 Always exit programs properly.
 Use a virus check program on a regular basis.
          Computer Damage

  A computer program designed to
   damage computer files
  A application designed to search for
   viruses and repair files on a computer
     Proper Storage Device Care
 Do not remove from drives while drive in
  running or light is on.
 Avoid contact with magnets and
  electromagnetic fields.
 Keep storage device stored in a clean, cool and
  dry place with a protective cover.
 Always properly eject before taking it out of the
  USB drive
 Use a virus check program on a regular basis.
 Avoid hot and cold locations.
 Make a back-up copy of your programs and
      Proper CD ROM Care
 Keep CDs stored in a clean, cool and dry place
  with a protective cover.
 Avoid touching the back side of the CD; to
  avoid scratches.
 Avoid hot and cold locations.
 Make a back-up copy of your programs and
 Insert into CD ROM Drive properly; label facing
 Only write on CD’s with a CD Marking Pen on
  a label or the correct side of the CD.
      Proper Care of Printers
 Avoid cold, hot, and dusty locations.
 Always use the correct ink or toner
 Always have the proper printer cable connected
  to your computer.
 Never pull paper out of a printer in motion.
 Do not turn off the printer while printing.
 Read the instruction manual before operating a
 Always use the proper type of paper in your

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